Improvement in the construction of rubber and other elastic springs



D. .E- SOMES.

Construction of Bubber'and other El astic Springs.

Patented Dec. I, 1868'.

u PETERS Mmnpher. Washinglm my a enital fiance (Mir.

tent

' the same, showing elastic metallic bands combined with .adapted tosustain a varying load in regulating its own When suificient pressure isbrought to-bear upon DANIEL E. .SOMES, OF WASHINGTON. DISTRICT OFCOLUMBIA.

Letters Patent N 0. 84,654

, dated Deccmber'l, .1868.

mrPRovEMn-Nr IN THE cons'rnucrron or- Rn'BBnR OTHER ELASTIC SPRINGS.

The Schedule referred to in these LettersPatent and making part of thesame.

To all whom it may concern:

Be it known that I, DAnmL ll. smiles, of Washington, District ofColumbia, have invented a new and useful Spring, for various purposes;and I do hereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,which make part of this specification, and in which- Figure 1 representsa perspective section of my improved spring, shown-as composed ofelastic tubes;

FigureZ, asimilar section of the same, composed of elastic spheresFigure 3, a sectional elevation of -a similar form of the spheres; and

Figure 4,a view, in perspective, sented by fig. 3.-

The object of my invention is to produce a spring whose elasticity willbe exerted to different degrees, according to the different pressureswhich are put upon it, so that agreater or less pressure upon the springwill respectively develop a greater or less amount of elasticitytherein; to which ends,

My improvement consists in forming a spring of a series of elastic tubesor spheres,' one within the other, by which means the elasticity of theseparate members of which the spring is composed is successivelydeveloped or rendered latent, according as the pressure upon it isincreased or diminished, and the spring thereby of the spring repre-'tension.

In the accompanying drawings, which show a convenient arrangement ofparts for carrying out the objects of my invention,

Fig. 1 shows my spring'as composed of a series of elastictubes, A A Aone within another.

These tubes may be composed of rubber or other suitable elasticmaterial, and their number, diameter,

the spring to surpass the elasticity of its outer tube, that of-the nextwill be developed, and so on through the series, in proportion to thevariations of pressure. In like manner, according as the pressure uponthe spring is relaxed, its several members will return to their originalform and tension.

Figs. 2, 3, and 4 show my spring ascomposed of a series of spheres, B BB one within another, and op. rating similarly to the tubular springjust described.

The spheres may either be made air-tight, for the purpose of utilizingthe elasticity of the air within them, or be provided with orifices, bI), through which. it can escape when they are compressed, and therebyenable the pressure to be sustained by the spheres alone.

In figs. 3 and 4, elastic metallic bands or rings, 0 G,

similar bands maybe .used upon the tubes A A A if deemed desirable.

latter maybe of circular, elliptical, or polygonal crosssection, asfound most suitable to the conditiou'of its construction and use.

It will be seen that my spring is simple in its con- .priatelyapplicable to railway-cars, wagons, and all other cases, where varyingweights or pressures are to be borne by the same spring or set ofsprings.

Having thus 'fully described my invention,

' What I claim therein as new, and desire to secure by Letters Patent,is-

one within another, substantially as set forth.

2., A spring, composed of a series of elastic spheres,

substantially as set forth.

3. A spring, composed of elastic tubes or spheres, surrounded by elasticbands or rings, substantially as set forth.

D. E.- SOMES.

Witnesses:

F. O. Semis,

CHARLES Harmon.

are shown asvsecured to the spheres by rivets c c, and- In cases wheremy spring is composed of tubes, the

struction, and not liable to derangement, and is appro- 1. A spring,composed of a-series of elastic tubes,

one within another, and either air-tight or perforated,

